Bip39 Checksum. At the start you ought to retail store it Independently from the seed. Owning your seed plus your passphrase in a similar spot defeats the objective of having a passphrase in the first place. BIP44 defines a selected critical derivation route construction that enables for controlling various accounts https://socialexpresions.com/story5161812/bip39-wallets-https-linktr-ee-bip39-an-unbiased-view-of-bip-39